对源对微藻-细菌颗粒性污泥的影响的机制性见解:社区动态和代谢功能
Yuting Shi1, Shicheng Zuo2, Ziqi Zhang2
1Department of Water and Wastewater Engineering, School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China; Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430065, China.
Bioresource technology
|June 28, 2025
概括
不同的源对微生物群落和MBGS系统中的污染物去除有影响. 氨最初促进了的去除,而尿素有利于特定的细菌,展示了系统.
科学领域:
- 环境微生物学 环境微生物学
- 生物技术是生物技术.
- 废水处理 废水处理
背景情况:
- 源的组成可以影响微生物社区的结构和功能在生物处理系统.
- 了解这些动态对于优化污染物清除效率至关重要.
研究的目的:
- 研究不同氨和尿素成分对污染物去除,微生物进化和膜生物气体固体 (MBGS) 系统中的功能的影响.
- 阐明MBGS系统对不同源的反应的微生物机制.
主要方法:
- 使用控制氨和尿素源的MBGS系统进行实验设置.
- 随着时间的推移,监测总去除.
- 使用16S rRNA测序进行微生物社区分析.
- 甲基因组分析以确定参与代谢的关键基因.
主要成果:
- 与尿素 (p < 0.05) 相比,较高的氨比在最初的7天内显著增强了总去除.
- 在接下来的几天中,这种影响有所减弱 (p > 0.05),表明系统的适应.
- 尿素丰富了蛋白质细菌 (阿尔法蛋白质细菌),而氨刺激了Firmicutes,贝塔蛋白质细菌和Cyanophyceae.
- 阿尔法蛋白细菌被确定为代谢基因 (ureA/B/C,GLUD,gltB) 中的关键参与者.
结论:
- 通过微生物社区调节,MBGS系统表现出强大的适应性,能够适应不同的源成分.
- 源成分显著影响微生物群体动态和功能基因表达.
- 这些发现凸显了MBGS系统在有效处理废水方面的自我调节能力.
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